yongkangc

Ethereum State Root Debugging: Nibble-by-Nibble Trie Walking Guide

A comprehensive guide for debugging state root mismatches in Ethereum clients by systematically walking through tries to identify the exact source of discrepancies.

Table of Contents

• Overview
• Problem Analysis Framework
• Debugging Workflow
• Trie Walking Logic

yongkangc

Comprehensive deep dive into Reth's Merkle/Trie implementation - architecture, stages, state root computation, and debugging guide

Reth Merkle/Trie Implementation - Deep Dive

A comprehensive analysis of Reth's Merkle Patricia Trie implementation, covering architecture, state root computation, sync stages, and debugging approaches.

Table of Contents

• Overview
• Architecture

yongkangc

Foundry Cast Commands Reference

A comprehensive guide to Foundry's cast command-line tool for Ethereum blockchain interaction, debugging, and development.

Table of Contents

• Basic Setup
• Block & Chain Data
• Transaction Operations
• Account & Balance

yongkangc

Reth Hoodi Testnet Benchmark Commands

1. Start Reth Node

Start a Reth node with Hoodi testnet configuration and all required flags:

/mnt/disks/disk-4/rust-build-cache/debug/reth node \
  --chain hoodi \
  --datadir /mnt/disks/disk-4/hoodi-snapshot \

yongkangc

Reth Benchmark Results - 100 Blocks on Hoodi Network

Date: 2025-08-22

Branch: alexey/tx-execution-cache (with cache improvements)

Test Configuration

• Network: Hoodi (Ethereum testnet)
• Blocks Tested: 1049901 - 1050000 (100 blocks)
• Node: Reth v1.6.0-dev (fc6eb95)
• Snapshot: Downloaded from https://snapshots.ethpandaops.io/hoodi/reth/1050000/

yongkangc

Reth Transaction Execution Cache Performance Analysis

Date: 2025-08-22

Branch: alexey/tx-execution-cache

Executive Summary

We successfully implemented and optimized transaction execution caching in Reth based on PR #17844. The improvements target increasing cache hit rate from 57% to 80% through intelligent filtering and enhanced metrics.

Implementation Overview

yongkangc

ExEx Tracing using EthApi - Alternative Approach

You can use the EthApi from the RPC handle for tracing. The FullEthApi trait includes Trace capabilities.

Key Discovery

From FullEthApi trait definition:

pub trait FullEthApi:

yongkangc

# Real-time Tracing with Reth ExEx - Working Example

A complete example showing how to get transaction traces in real-time using Reth's Execution Extensions.

## Cargo.toml

```toml
[package]
name = "exex-tracing"
version = "0.1.0"

yongkangc

Real-time Traces with Reth ExEx

Three approaches to get near real-time traces using Reth's Execution Extensions (ExEx):

1. Re-execute with TracingInspector (Most Flexible)

TracingInspector is from the revm-inspectors crate.

use revm_inspectors::tracing::{TracingInspector, TracingInspectorConfig};

yongkangc

Running a Reth Node on the Hoodi Ethereum Testnet

This guide provides a step-by-step process for setting up and running a Reth (Rust Ethereum client) execution client on the Hoodi testnet. Hoodi is an upcoming Ethereum testnet launching on March 17, 2025, with Chain ID 560048 and Network ID 560048, utilizing Deneb consensus and Cancun execution features.

This guide is designed for developers and enthusiasts looking to participate in the Hoodi testnet by running their own Reth node.

Table of Contents

1. Prerequisites and System Requirements
2. Installation Methods